SmogRank / World / Europe / Spain / Asturias
Most polluted cities in Asturias, Spain
4 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Gijón at 10.9 µg/m³, #553 in the world.
26 monitors in Spain stopped reporting on 6 Oct, 05:00 Madrid time. Cities that rely on them are missing from the 24-hour board and may drop from the longer ones; that isn't clean air, and they return when the data does.
About 0 people in these 2 cities breathed unhealthy air on an average day over the last 30 days.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
Cities coloured by their PM2.5 over the last 24 hours. Fires, smoke and ash: Oct 5, the newest UTC day mapped.
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
Asturias cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Mieres | ≈ 8 µg/m³ |
| La Felguera | ≈ 8 µg/m³ |
| Natahoyo | ≈ 8 µg/m³ |
| Corvera de Asturias | ≈ 8 µg/m³ |
Bad-air episodes in Asturias
- Galicia, Asturias and Castille and León, Spain, June 202624 June 2026, 1 day8 cities60 µg/m³peak, A Coruña
- Spain, Portugal and Andorra, August 202510 to 22 August 2025, 13 days57 cities203 µg/m³peak, Ponferrada
- Southern Europe, February 20244 to 9 February 2024, 6 days53 cities98 µg/m³peak, Peschiera del Garda
- Europe, 27 January to 2 February 20247 days173 cities134 µg/m³peak, Banja Luka
- Spain, Portugal and France, February 20241 to 2 February 2024, 2 days20 cities42 µg/m³peak, Vigo
- Spain, France and 2 more countries, December 2023 to January 202425 December 2023 to 1 January 2024, 8 days48 cities99 µg/m³peak, Manlleu
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
Use this board
SmogRank, most polluted cities in Asturias, Spain, PM2.5, last 30 days to 6 Oct 2026, 23:00 UTC, smogrank.com/es/region/asturias?w=30d.
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.